Table 1 Dust concentration comparison between dry shotcrete and wet shotcrete
From: Pipe flow of pumping wet shotcrete based on lubrication layer
Measuring points | Wet shotcrete (mg/m3) | Dry shotcrete (mg/m3) | ||
|---|---|---|---|---|
Total dust concentration | Respirable dust concentration | Total dust concentration | Respirable dust concentration | |
Around spraying workers | 14.8 | 5.3 | 95.5 | 49 |